Draft appliance.



N0; 7l0,'833. Patented Oct. 7 I902.

c. m. ARNOLD.

DRAFT APPLIANCE.

(Application filed Mar. 29, 1.902.) (No Ilodul.)

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C. M. ARNOLD.

DRAFT APPLIANCE.

, (Application filed Mar. 29, 1902.1

2 Sheets-Sheet 2.

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UNITED STATES PATENT OFFICE.

CYRUS M. ARNOLD, OF NURSERY, TEXAS, ASSIGNOR OF THREE-FOURTHS TO OLIVIA L. LOZANO AND JOHN A. ARNOLD, OF NURSERY, TEXAS.

DRAFT APPLIANCE.

SPECIFICATION forming part of Letters Patent N 0. 710,833, dated October 7, 1902.

'lpplication filed March 29, 1902. Serial No. 100,594. (No model.)

To mZZ whom it may concern:

Be it known that I, CYRUS M. ARNOLD, a citizen of the United States, residing at Nursery, in the county of Victoria and State of Texas, have invented certain new and useful Improvements in Draft Appliances, of which the following is a specification.

My invention has relation to improvements in draft appliances for road-vehicles; and the objectsaretoprovideasimplifiedconstruction of a mechanism for the purpose of changing and equalizing the draft relatively to distinctions between the draft-animals and also to adjust and change the line of draft relatively to the doubletree, making the point of attachinent nearer to or farther from the pivotal support of the doubletree.

WVith these objects in view my invention consistsin the novel construction of parts and their novel arrangement and aggroupment in operative combination.

I have fully and clearly illustrated the im provements in the accompanying drawings, to be taken as a part hereof, and wherein Figure l is a perspective view of a vehicletongue shown as having my improved appliances applied thereto. Fig. 2 is a detail view of the slotted guide-plate for the spreading bars or levers. Fig. 3 is an enlarged de- 0 tail plan view showing a portion of the doubletree with the guide-loop secured thereto and indicatingthe connections of the spreaderbar and singletree-clevis. view of the antifriction-roller, which is mount- 5 ed on the connecting-pin of the spreader-bars and clevises. Fig. 5 is a detail perspective view of one of the clevises. Fig. 6 is a detail perspective view of one of the spreader bars or levers. Fig. 7 is a side elevation, partly in section. Fig. Sis an end elevation, partly in section. Fig. 9 is a detail view of the levercrank. Fig. 10 is a detail vertical section of the tongue-clip and lever-crank.

Referring to the drawings, A designates the 5 tongue of a vehicle, which may be of any of the well-known makes, and B designates the doubletree, of the usual construction, pivotally secured to the tongue. To the doubletree is rigidly fastened a plate 1, formed with Fig. a is a detail an arm or tongue 2, wherein is a longitudinal slot 3, constituting a guide-slot for the united ends of the spreader-rods to slidingly engage in. An opening 4 is also formed in the plate, through which the hammer-strap 5 loosely projects, as shown. To the rear face of the doubletree, at the ends there0f,are rigidly secured two links or loops 6, duplicates in formation, the slots or ways of which serve as'guides for the rollers of the connected ends of the spreader and clevises.

7 8 designate oppositely arranged and extending spreader rods or bars, having their innerendsadjustably connected byapivot-pin 9 and formed with loops 10 at their outer ends which are pivotally connected to the free ends of the clevises 11 by a pivot-pin 12, passed through the links 6 and carrying antifrictionrollers 13, whereby the parts at their pivotal connection may slide freely through the slots of the links. The inner ends of the spreaderbars, as heretofore mentioned, are adjustably connected by a pivot-pin 9, the adjustability being effected by placing the pin 9 through the selected pin-hole of a series 14 in the end portions of the bars.

On the tongue at a convenient point is recured a clip 15, held firmly in position by a fastening-pin through the ends, as indicated, and to the projecting ends of the clip is rigidly secured a section-rack 16, to which is pivotally fastened the lower end of a handlever 17,'provided with a spring-actuated pawl-piece 18, which engages in the rack to hold the lever in any position to which it may be moved. To the lever 17 is pivotally connected one end of a pull-bar 19, the other end of which is suitably connected to the pivotpin which connects the spreader-bars.

It will now be perceived that under equal adjustment the doubletree acts identical when force is applied to that of any common doubletree, but when it is desired to spread the points of attachment of the force the lever is moved forward, which increases the distances between the clevises by moving the spreader-arms outward. If the team isunequal in strength, one of the spreader-bars is made shorter by adjustment, sothat one clevis will stand nearer the pivotal point than the other, and thus make one lever longer than the other.

Having thus described my invention, What I claim is 1. The combination with a wagon-tongue, of a doubletree pivotally mounted thereon and provided with slotted guides at its ends, a plate rigidly secured to the doubletree and formed with a rearwardly-extending slotted arm,oppositely-directed spreader-bars having their inner ends pivotally secured togather to slide in the slot of said plate, and their outer ends formed with loops, clevises slidingly mounted on the doubletree, apivotpin projected through the slotted guides and connecting the inner ends of the clevises t0 the outer ends of the spreader-bars and means to draw the pivot-pin which unites the inner ends of the spreader-bars longitudinally in the slot of the plate.

2. The combination with a Wagon-tongue,

of a doubletree pivotally mounted thereon and provided with slotted guides at its ends, a plate rigidly secured to the doubletree and formed with a rearWardly-extending slotted arm, oppositely-directed spreader-bars having their inner ends pivotally secured together to slide in the slot of said plate, and their outer ends formed with loops, clevises slidingly mounted on the doubletree, a pivotpin projected through the slotted guides and connecting the inner ends of the clevises to the outer ends of the spreader-bars, a pull-bar connected to the pivot-pin uniting the inner ends of the spreader-bars, and a lever on the tongue to draw the pull-bar.

In testimony whereof I affix my signatur in presence of two Witnesses.

CYRUS M. ARNOLD.

Witnesses:

CONRAD DEDEAR, LIBRADO GONZALES. 

